US PATENT SUBCLASS 318 / 605
.~.~.~ Synchro or resolver (e.g., transmitter simulators)


Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
600  DF  .~ Digital or numerical systems {3}
604  DF  .~.~ Analogue comparison {1}
605.~.~.~ Synchro or resolver (e.g., transmitter simulators)


DEFINITION

Classification: 318/605

(under subclass 604) Subject matter in which the analog comparison is by means of a synchro or resolver system. A synchro is a rotary transformer used for the instantaneous electrical transmission or reception of the angular position data of rotating parts. A resolver is a rotary transformer for resolving a vector into two mutually perpendicular components, such as translating error angle into electrical information corresponding to sine and cosine of rotor angle.

(1) Note. Included herein are systems in which the synchro or resolver transmitter is simulated by the digital to analog converter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

569, and especially subclass 573, for programmed controlled digital systems in which a synchro or resolver transmitter simulation may be employed.

SEE OR SEARCH CLASS

708, Electrical Computers: Arithmetic Processing and Calculating,

1+, for electric hybrid computers, and subclasses 270+ for digital function generation.